fossil fuel

noun

: a fuel (such as coal, oil, or natural gas) formed in the earth from plant or animal remains
fossil-fueled adjective

Examples of fossil fuel in a Sentence

oil and other fossil fuels
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Engineers and safety experts are solving problems in a new technology that gets us off expensive and polluting fossil fuels. Voice Of The People, New York Daily News, 9 May 2026 The strength of these winds has been linked, in part, to the increase of planet-heating pollution from burning fossil fuels, as well as the hole in the ozone layer above the continent. Laura Paddison, CNN Money, 8 May 2026 Industrial production of these compounds usually depends on hydrogen generated through steam methane reforming, a fossil fuel-intensive process that operates under high temperature and pressure. Neetika Walter, Interesting Engineering, 8 May 2026 The thing to worry about is the longer-term, steady warming trend that will continue as long as people continue to burn fossil fuels, Mann said Friday. ABC News, 8 May 2026 See All Example Sentences for fossil fuel

Word History

First Known Use

1759, in the meaning defined above

Time Traveler
The first known use of fossil fuel was in 1759

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Cite this Entry

“Fossil fuel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fossil%20fuel. Accessed 11 May. 2026.

Kids Definition

fossil fuel

noun
: a fuel (as coal, oil, or natural gas) that is formed in the earth from plant or animal remains

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